<!DOCTYPE html>
<!--04.尚硅谷_css2.1_使用浮动实现三列布局-->
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<!--
			1.两边固定  当中自适应
			2.当中列要完整显示
			3.当中列要优先加载(该页面未实现)
		-->
		<style type="text/css">
			
			*{
				margin: 0;
				padding: 0;
			}
			body{
				/*2*left+right*/
				min-width: 600px;
			}
			div{
				height: 100px;
			}
			#left,#right{
				width: 200px;
				background: pink;
			}
			#left{
				float: left;
			}
			#right{
				float: right;
			}
			#middle{
				background: deeppink;
			}
		</style>
	</head>
	<body>
		<div id="middle">middle</div>
		<div id="left">left</div>
		<div id="right">right</div>
	</body>
</html>
